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Education / Track IV · Strategy Construction / L.19

Covered Calls and Cash-Secured Puts

Covered calls and cash-secured puts are the entry-level short-premium strategies. They are also the most misunderstood. Run carelessly, they amount to selling your upside cheap.

13 min read · Lesson 19 of 24

Covered call: stock plus short call

A covered call is a position consisting of long stock plus a short call against it. The call is "covered" because if it gets assigned, you have the underlying shares to deliver. There is no naked-short-call risk.

The position generates income (the call premium) in exchange for capping your upside at the call's strike price. If the stock stays below the strike, you keep the premium and your shares. If it rises above the strike, your shares get called away at the strike, and you keep the premium plus the appreciation up to the strike.

$105 0 +$15 −$30 Underlying Price at Expiry P&L per Contract Strike $105 BE $97 Covered Call · Stock at $100 · Sell $105 Call · Premium $3
Fig. 19.1 Covered call. Stock owned at $100 cost, $105 call sold for $3 premium. Profit capped at $8 per share. Loss is the stock's downside minus the premium.

The hidden bargain

Covered calls are often pitched as low-risk income strategies. They are not low-risk. They have exactly the same downside as long stock (minus a small premium cushion) and they cap the upside. The risk profile is identical to a short put with cash collateral, because of put-call parity.

Selling a $105 call against $100 stock is the same risk as selling a $105 put naked, except for some second-order effects (dividends, early-exercise risk on the call). Both positions profit if the stock ends between $97 and $105, both make capped profit if it ends above $105, and both eat the full downside if it ends below $97.

Covered calls are short volatility
Selling a call against stock is selling volatility on that stock. You are betting that the stock will not rise far enough to make the call worth more than the premium you collected. This is a position view, not a free income stream. Treat it like any other short-premium trade: only sell when IV is rich, not as a default income strategy.

When covered calls actually make sense

Three setups where covered calls add value:

  1. You already own the stock and have a price target. Selling a call at your target price monetizes the upside in advance. If you would sell at $105 anyway, why not get paid $3 to commit to it?
  2. IV is elevated. Rich premium means you are getting paid more for the upside cap. Selling calls during high-vol periods extracts more value than selling them during low-vol periods.
  3. You expect range-bound behavior. Covered calls work in flat markets and lose to upside in trending markets. If your view is sideways drift, the strategy fits.

They do not make sense if you are bullish on the stock and want to ride it higher. The opportunity cost of capped upside often exceeds the premium collected. They also do not make sense as a way to "recover" losses on a position. The premium is small relative to most losses worth recovering.

Cash-secured put: paid to wait

A cash-secured put (CSP) is a short put with cash set aside to buy the stock at the strike if assigned. You are agreeing to buy the stock at the strike, and you are getting paid (the put premium) to make that commitment. The position profits if the stock stays above the strike.

$95 0 +$10 −$30 Underlying Price at Expiry P&L per Contract Strike $95 BE $92 Cash-Secured Put · Strike $95 · Premium $2.50
Fig. 19.2 Cash-secured put. Sell $95 put for $2.50. Maximum profit is the premium ($2.50). Loss begins below $92.50 and grows as the stock falls.

This is the strategy used by long-term investors who want to own the stock at a discount. If you would buy at $95 anyway, getting paid $2.50 to wait is a clean structure. If the stock dips and you get assigned, you own the shares at an effective basis of $92.50 ($95 strike minus $2.50 premium). If the stock stays above $95, you keep the $2.50 and can sell another put.

The wheel

Combining cash-secured puts and covered calls produces a strategy called "the wheel." The mechanics:

  1. Sell a cash-secured put on a stock you would not mind owning.
  2. If it expires OTM, keep the premium and sell another.
  3. If you get assigned, you now own the stock. Sell a covered call against it.
  4. If the call expires OTM, keep the premium and sell another.
  5. If the call gets assigned, you sell the stock and start over.

The wheel is popular in retail communities. It works well in range-bound markets on stocks you genuinely want to own. It produces inferior returns to buy-and-hold in trending markets, because every time the stock rallies past your covered call strike, you get called away and lose the rest of the upside.

Strike selection

Standard practice: sell the 30-delta call against stock for covered calls. Sell the 30-delta put for cash-secured puts. The 30-delta strike has approximately a 70% chance of finishing OTM, which is the favorable outcome for the seller.

Aggressive traders sometimes sell ATM (50-delta) options to maximize premium, accepting more frequent assignment. Conservative traders sell 15-20 delta to minimize assignment risk and accept smaller premium.

Time to expiry

Most retail wheel programs sell 30-45 day options. This balances theta extraction with the risk of being caught in a sudden move. Selling weekly options captures more theta per day but produces more frequent rolls and more transaction costs.

Selling further-dated options (60-90 days) reduces management overhead but ties up more capital and produces less theta per unit of time.

What you carry forward